A method of filtering incoming and outgoing vehicles based on a selected time period and a selected area
A technology for selecting regions and time periods, applied in the field of Internet of Vehicles, which can solve problems such as low query efficiency
Active Publication Date: 2020-01-31
中电福富信息科技有限公司
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Problems solved by technology
[0002] At present, in the application of the Internet of Vehicles, the vehicle-mounted terminal will report some location information in a short time, and each vehicle-mounted terminal will upload data periodically in 20-30 seconds, so that the data received and stored by the server will be massive after a period of time. Data, if you want to find vehicles passing by in a selected time period and a selected area from these data, the query efficiency will be very low
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[0018] see figure 1 Shown, a kind of method of screening incoming and outgoing vehicles based on a selected time period and a selected area of the present invention, the method is to save the received vehicle positioning data information into a database, and the database is designed to store the primary key; Divide the area into equal proportions by the coordinate system, and store an area information table in the database, and store the received positioning data into the corresponding area information table according to the coordinates; when querying the specified time and specified area, first obtain The longitude and latitude of the four points in the selected area, the maximum longitude, the minimum longitude, the maximum latitude, and the minimum latitude are obtained, and combined with the specified time range, the query primary key is obtained, and the range query of the database is performed.
[0019] In the present invention, the preferred database is hbase database...
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The invention provides a method for screening accessing vehicles based on selected time periods and selected areas. The method comprises the following steps of saving received vehicle-mounted positioning data information in a database, and designing a storage primary key of the database; dividing a map into a plurality of areas with equal proportions according to a coordinate system, storing an area information table in the database, and saving received positioning data into the corresponding area information table according to coordinates; when specified time and a specified area are queried, acquiring longitudes and latitudes of east, west, north and south orientations in the selected area first to obtain information about a maximum longitude, a minimum longitude, a maximum latitude and a minimum latitude; then combining with a specified time range to obtain a query primary key, and carrying out range querying on the database. According to the method provided by the invention, on the premise of mass data, passing vehicles and data of the vehicles in the specified area during a specified time period can be rapidly and accurately queried, and the querying efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of Internet of Vehicles, in particular to a method for screening incoming and outgoing vehicles based on a selected time period and a selected area. Background technique [0002] At present, in the application of the Internet of Vehicles, the vehicle-mounted terminal will report some location information in a short time, and each vehicle-mounted terminal will upload data periodically in 20-30 seconds, so that the data received and stored by the server will be massive after a period of time. If you want to find vehicles passing by in a selected time period and a selected area from these data, the query efficiency will be very low. [0003] "A method for quickly locating the area to which a vehicle belongs" is disclosed in the prior art. See the Chinese patent with publication number: 102147979A and publication date: 2011-08-10. This invention discloses a method for quickly locating the area to which a vehicle...
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IPC IPC(8): G06F16/27G06F16/22G06F16/2455
CPCG06F16/2228G06F16/2282G06F16/2455G06F16/27
Inventor 黄祖艳
Owner 中电福富信息科技有限公司